Why do we have to "Restart" the P.C. everytime when install a new programme or do some changes to system?

Answer 1

Hi there.

Interesting question. There are a few reasons, but here's the main reason.

Sometimes the program being installed has files that already exists on the hard drive but with different versions, or are being in use at that moment. A file can't be replaced while opened, and since shutting down that file may cause unexpected system failures and such, it needs to be replaced AFTER a reboot, before the main kernal OS is loaded. Once the computer is rebooted, the file(s) can be replaced safely and the OS reloaded.

Also, when you do changes on the system, most notably in Control Panel, it also requires some files/settings to be updated/replaced .. and this leads to the "files being opened" situation described above.

Hope this helps!

Answer 2

One of my greatest peeves with windows. Especially annoying when setting up a bunch of machines in a computer lab classroom and having to do a dozen or so restarts per machine. That was a few years ago.
Starting with win2k you could at least do an ip change without having to restart.

Just another one of the reasons I use Linux. I can compile and install dozens upon dozens of programs without restarting the machine. My average uptime is measured in weeks and months, not hours.

This 'feature' of windows is partly why it is inherently insecure. Because it allows programs to modify core operating system files and shared libraries (dlls). In most cases this can't be done without restarting to swap the old file with the new or modified file because of the way the system hooks into those files.

You may be interested in this:
http://exodusdev.com/products/whyreboot/

Answer 3

That is the way the system is engineered. Many times when you install updates or make changes to system settings, files that are currently in use are the ones that get modified. Windows can't modify or replace a file that is currently in use because the file is locked so it must reboot to release the file.

Answer 4

You restart a computer everytime when you install or make changes because your computer has to apply the new changes. Kind of like getting it acquainted to your PC.

Answer 5

You have to restart your computer so that so whatever you downloaded will take action if you don't restart it,it wont start working right away but as soon as you restart your computer it will start to work it's just to make the download work that's all it is.So it's like your computer has to apply the download.

Answer 6

verify what number programmes are commencing up once you boot up you laptop. eliminate people who you do no longer desire on start up-up. freshen up your laptop bypass to start up>All Programmes,>device approaches and from there pick, in turn, DISK freshen up and DISK DEFRAGMENTER. have not got an entire Recycle Bin. Empty it now and then. Get some (loose) stuff to assist freshen up, like CCleaner (Crap purifier) Spybot and AdAware. upload some RAM if mandatory.